Good morning!

One of my players crafted a spell with Projectile -> Area -> Ice.
When casting, the server crashed.
Now when players attempt to join, the server shuts down.

Here is the crash log from actually casting the spell.
https://pastebin.com/857wE8um

Here is the log from when a player tries to join the server after casting. It instantly kicks them and restarts the server.
https://pastebin.com/qU03mvEg

Thank you for reporting! This has just been fixed!